While Margot Kidder is best known for her recurring role as Lois Lane in the original Superman films, she will also be remembered for her long and courageous battle with bipolar disorder, once known as manic depression.
The actress died at the age of 69 on Sunday at her home in Livingston, Montana, PEOPLE confirmed on Monday. Her cause of death is unknown.
“The reality of my life has been grand and wonderful, punctuated by these odd blips and burps of madness,” Kidder told PEOPLE for a cover story in 1996, not long after her last reported manic episode, which left her homeless for a time.
